Deltafaucet.com Refusal to honor their lifetime warranty program. Indianapolis IN

During 40 years of home ownership, I have used Delta faucets for all of my homes.  In the past I have had some problems with the finish being corroded from the minerals in Florida water.  Each time that I contacted the company, their customer service was very reponsive and after emailing them a photo, of the damage, they quickly sent me replacement parts with no questions asked.  I originally contacted them on 10/15/20 to report my problem.  Through 17 emails, they have repeatedly asked me the same questions over and over address, i.e. my address, when purchased, where purchased, send additional photos. etc.  Thet even tried to tell me that the nozzle on the end of the faucet wasn't a Delta part (which it is).  Recently I asked them when can I expect my replacement parts.  They have ignored my request and are no longer responding to my emails.